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WO2002082555A2 - Dispositifs a matrice d'elements munis de substrats souples - Google Patents

Dispositifs a matrice d'elements munis de substrats souples Download PDF

Info

Publication number
WO2002082555A2
WO2002082555A2 PCT/IB2002/001173 IB0201173W WO02082555A2 WO 2002082555 A2 WO2002082555 A2 WO 2002082555A2 IB 0201173 W IB0201173 W IB 0201173W WO 02082555 A2 WO02082555 A2 WO 02082555A2
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
areas
semiconductor devices
weakness
regions
Prior art date
Application number
PCT/IB2002/001173
Other languages
English (en)
Other versions
WO2002082555A3 (fr
Inventor
Nigel D. Young
Original Assignee
Koninklijke Philips Electronics N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Priority to JP2002580413A priority Critical patent/JP2004519866A/ja
Priority to AT02718454T priority patent/ATE449423T1/de
Priority to DE60234434T priority patent/DE60234434D1/de
Priority to EP02718454A priority patent/EP1384270B1/fr
Publication of WO2002082555A2 publication Critical patent/WO2002082555A2/fr
Publication of WO2002082555A3 publication Critical patent/WO2002082555A3/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133305—Flexible substrates, e.g. plastics, organic film
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/76—Unipolar devices, e.g. field effect transistors
    • H01L29/772—Field effect transistors
    • H01L29/78—Field effect transistors with field effect produced by an insulated gate
    • H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
    • H01L29/78603—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the insulating substrate or support

Definitions

  • the weakened regions may comprise lines of weakness extending over the areas of the substrate between the semiconductor devices. Where the semiconductor devices are arranged for example in a row and column array, these lines may extend between, and spaced from, rows and/or columns of the semiconductor devices. Lines extending in one direction, for example between rows, would facilitate cylindrical rolling of the device. Lines extending in orthogonal directions between rows and columns would facilitate more complex bending, as required for example for spherical moulding.
  • the areas of the substrate underlying of the semiconductor islands may be formed with a comparatively greater stiffness, for example by making the thickness of the substrate at areas underlying these islands greater than thickness of the remainder of the substrate.
  • this further substrate can similarly be provided with lines of weakness. These links of weakness preferably extend overlying regions between rows and/or columns of pixel electrodes on the first - mentioned substrate.
  • the row conductors 14 are not visible.
  • a metal is used for the address conductors 14 and 16 and the electrodes 18 may be of metal or a transparent conducting material such as ITO or PEDOT polymer depending on whether the pixels are reflective or transmissive respectively.
  • the polymer material at regions where flexing is to be encouraged may be treated so as to render them softer, and thus more flexible, than portions underlying the active devices.
  • the portions treated in this way then will tend to flex and distort more readily.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Ceramic Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Hardware Design (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Thin Film Transistor (AREA)
  • Liquid Crystal (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Solid State Image Pick-Up Elements (AREA)

Abstract

La présente invention concerne un dispositif à matrice d'éléments, par exemple un dispositif d'affichage à matrice active, un capteur d'image ou analogue, comprenant un circuit matriciel (12, 14, 16, 18) soutenu sur un substrat souple (20), lequel circuit comprend une matrice de dispositifs à semi-conducteur (12), tels que des TFT, occupant des zones distinctes. On forme en des régions choisies du substrat (20) éloignées des dispositifs à semi-conducteur (12) des zones de faiblesse destinées à ce que la flexion du substrat se produise de préférence dans ces zones lorsque le dispositif se plie, et à réduire de la sorte le risque de dommage pour les dispositifs à semi-conducteur. Ces régions peuvent, par exemple, comprendre des lignes de faiblesse (50, 52) s'étendant entre les dispositifs à semi-conducteur et peuvent être formées par un amincissement localisé du substrat ou par un traitement apporté au matériau du substrat afin de modifier la rigidité de ce dernier en des zones prédéterminées.
PCT/IB2002/001173 2001-04-03 2002-04-02 Dispositifs a matrice d'elements munis de substrats souples WO2002082555A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2002580413A JP2004519866A (ja) 2001-04-03 2002-04-02 フレキシブルな基板を有するマトリクスアレイデバイス
AT02718454T ATE449423T1 (de) 2001-04-03 2002-04-02 Vorrichtungen mit aktiver matrixanordnung mit flexiblen substraten
DE60234434T DE60234434D1 (de) 2001-04-03 2002-04-02 Vorrichtungen mit aktiver matrixanordnung mit flexiblen substraten
EP02718454A EP1384270B1 (fr) 2001-04-03 2002-04-02 Dispositifs a matrice d'elements munis de substrats souples

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0108309.6 2001-04-03
GBGB0108309.6A GB0108309D0 (en) 2001-04-03 2001-04-03 Matrix array devices with flexible substrates

Publications (2)

Publication Number Publication Date
WO2002082555A2 true WO2002082555A2 (fr) 2002-10-17
WO2002082555A3 WO2002082555A3 (fr) 2003-01-03

Family

ID=9912139

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/001173 WO2002082555A2 (fr) 2001-04-03 2002-04-02 Dispositifs a matrice d'elements munis de substrats souples

Country Status (10)

Country Link
US (1) US6974971B2 (fr)
EP (1) EP1384270B1 (fr)
JP (1) JP2004519866A (fr)
KR (1) KR20030007756A (fr)
CN (1) CN1279622C (fr)
AT (1) ATE449423T1 (fr)
DE (1) DE60234434D1 (fr)
GB (1) GB0108309D0 (fr)
TW (1) TWI278990B (fr)
WO (1) WO2002082555A2 (fr)

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WO2010128614A1 (fr) * 2009-05-02 2010-11-11 Semiconductor Energy Laboratory Co., Ltd. Dispositif d'affichage
US8427420B2 (en) 2009-05-02 2013-04-23 Semiconductor Energy Laboratory Co., Ltd. Electronic book

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EP1384270B1 (fr) 2009-11-18
EP1384270A2 (fr) 2004-01-28
CN1460299A (zh) 2003-12-03
US6974971B2 (en) 2005-12-13
DE60234434D1 (de) 2009-12-31
GB0108309D0 (en) 2001-05-23
TWI278990B (en) 2007-04-11
ATE449423T1 (de) 2009-12-15
KR20030007756A (ko) 2003-01-23
JP2004519866A (ja) 2004-07-02
CN1279622C (zh) 2006-10-11

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